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Recent questions tagged q29
Questions
Find the general solution of the equation $(\sqrt 3+1)\cos \theta+(\sqrt 3-1)\sin \theta=2$
cbse
math
class11
ch3
trigonometric-functions
exemplar
q29
sec-c
difficult
asked
May 20, 2014
by
sreemathi.v
1
answer
The sum of the digits in unit place of all the numbers formed with the help of 3,4,5 and 6 taken all at a time is
cbse
math
class11
ch7
permutations-and-combinations
exercise7-3
exemplar
q29
sec-a
easy
asked
May 16, 2014
by
sreemathi.v
1
answer
If $P(n) : 2n < n!, n \in N$, then $P(n)$ is true for all $n \geq $______ .
cbse
class11
ch4
mathematical-induction
exemplar
q29
asked
May 6, 2014
by
thanvigandhi_1
1
answer
Find the derivative of the following functions ( it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers ) $(x + \sec x)(x-\tan x)$
math
cbse
class11
ch13
limits-and-derivatives
bookproblem
misc
p317-318
q29
asked
Apr 16, 2014
by
thanvigandhi_1
1
answer
A person writes a letter to four of his friends. He asks each one of them to copy the letter and mail to four different persons with the instruction that they move the chain similarly. Assuming that the chain is not broken, and that it costs 50 paise to mail one letter, find the amount spent on the postage when $8^{th}$ set of letter is mailed.
cbse
class11
ch9
misc
bookproblem
sec-b
easy
q29
sequences-and-series
math
asked
Apr 9, 2014
by
rvidyagovindarajan_1
1
answer
Two beams, $A$ and $B$, of plane polarized light with mutually perpendicular planes of polarization are seen through a polaroid. From the position when the beam $A$ has maximum intensity (and beam $B$ has zero intensity), a rotation of polaroid through $30^{\circ}$ makes the two beams appear equally bright. If the initial intensities of the two beams are $I_A$ and $I_B$ respectively, then $\large\frac{I_A}{I_B}$ equals :
jeemain
jeemain-2014
physics
q29
medium
asked
Apr 7, 2014
by
meena.p
1
answer
Let $a_1, a_2, ....,a_n$ be fixed real numbers and define a function $f(x) = (x-a_1)(x-a_2)...(x-a_n)$ \[\] What is $ \lim\limits_{x \to a_1}f(x)$? For some $ a \neq a_1, a_2,...,a_n$. Compute $ \lim\limits_{x \to a}f(x)$.
math
cbse
class11
ch13
limits-and-derivatives
bookproblem
limits
exercise13-1
p301-303
q29
asked
Apr 7, 2014
by
thanvigandhi_1
1
answer
Which of the following is an example of fibrous protein?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q29
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
For two variables $x$ and $y$ with the same mean the two regression lines are $x+2y-5=0$ $ 2x+3y-8=0$ and variance $(x)=12$ Then $ \sigma_y$ is
cl25510
jeemain
math
cbse
class11
statistics
variance-and-standard-deviation
difficult
q29
asked
Mar 26, 2014
by
balaji
1
answer
In the above sequence of reactions, A and B are
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q29
medium
asked
Mar 25, 2014
by
thanvigandhi_1
1
answer
Evlauate$ \Large \int_0^{\pi/4}$$ \large \frac{\sin x+\cos x}{9+16\sin 2x}$$dx$
cbse
class12
ch7
modelpaper-2014
65-2-3
sec-c
q29
math
asked
Mar 20, 2014
by
balaji.thirumalai
1
answer
Iron reacts with $P_4O_{10}$ in the presence of $O_2$ at a high temp to produce.
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q29
medium
asked
Mar 17, 2014
by
meena.p
1
answer
Which of the following substance has zero value of $ \Delta G_f^{\circ} $?
jeemain
physics
thermodynamics
cbse
class11
class12
q29
easy
asked
Mar 15, 2014
by
thanvigandhi_1
1
answer
If we assume linear structure of water (instead of bent),then which one of the following properties cannot be explained?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)-theory
q29
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following is not correct regarding terylene?
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry
polymers
q29
easy
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
$ the A.M. and $G$ the G.M. between two positive numbers then show that the numbers are $A\pm \sqrt {(A+G)(A-G)}$
cbse
class11
ch9
bookproblem
exercise9-3
sec-c
difficult
q29
math
sequences-and-series
asked
Mar 6, 2014
by
rvidyagovindarajan_1
1
answer
The hybridisation and geometry of $SO_4^{2-}$ respectively
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
hybridization
q29
easy
asked
Mar 5, 2014
by
sreemathi.v
1
answer
Which of the following statement is correct?(Here $R=CH_3$)
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
amines
q29
medium
asked
Mar 3, 2014
by
sreemathi.v
1
answer
Which of the following are not electromagnetic waves?
jeemain
aipmt
physics
cbse
class12
ch8
electromagnetic-waves
q29
easy
asked
Feb 27, 2014
by
thanvigandhi_1
1
answer
The number of sigma and pi-bonds in 1-butene -3-yne are
jeemain
chemistry
class11
organic-chemistry
q29
medium
basic-organic-chemistry
ch12
asked
Feb 21, 2014
by
meena.p
1
answer
Predict the product in the following reaction
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q29
medium
asked
Feb 20, 2014
by
sreemathi.v
1
answer
A gaseous mixture of $O_2 and N_2$ are in the ratio of 1:4 by weight . Calculate their ratio of molecules.
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
gas-laws
easy
q29
asked
Feb 14, 2014
by
sharmaaparna1
1
answer
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